hlmbery



PATENTED DECIO |867- itivfteifaire atmt 'Hit-t.

IMPnovMENT IN TUYERES.

Of* l @te tlgehnle referiert tu in there tettet @that mit making @mi of its anni.V

To ALL WHOM ltr MAY CONCERN: Y, y,

' Beit known that I, JOHN B. HIMBERiAioi Frederick city, in the county of Frederick, and Stato of Marylandr, have invented a new and useful Improvement in- Tuyeresj 'and I do' hereby declare tbn-t the following isia full, clear, and exact'description thereof', whch willienable others skilled `in the art to make and use the same, reference -bei'ng'had to the accompanying drawings, forming pnrt of this specification. i

Figure 1 represents s. longitudinal vertical section of my improved tuyere.` Figui-e2 islaplau or top view ofthe same. Y I Similar lettersof reference indicate corresponding parts. This invention relates to :t new tuyere, which is'so arranged that the central part or ring can be easily taken out whenever desired., but not accidentally, by a, hook orstirrer, and` that it can be easily cleaned Yandtaken apart whenever desire-il, und thatit msi-y conduct afstrong blast'of air to tbe'fire.

The invcntion'consists in the userof'n annular cover, bolted -vupon a cylindrical box, into which the blast ci' oir is conducted through a suitable induction-pipe, and in a ring placed into the` opening in the cover', and

suspending a dish-shaped plate. The blast of 'air passes through the space formed between the aforesaid ri'xigV und 4the dishgshaped plate, the under side of the covering-plate being convex, to guide the blast to this space.` The surface of the dish-shaped plate is-concave, to receivel the ashes', and to prevent them from fallnginto the box.

A represents a box, *ofcylindricul or other shape, .made oi' metal or other suitable material, and connected by means of a pipe, B, with the bellows or air-forcing apparatus. 'Ihe cover C of 4the box A is made annular, 'and has a flange, a, which lupa over the sii-1e of the box,'as shown in fig. 1. Its under side'is convex, as shown, und it is fastened by means of two cr morebolts, DID, to the box', asV is clearly shownintbeidrawing., On the inner edge ci' the plate c is formed a projecting shoulder, b, upon which a.ri'ng, is 4loosely placed, said ring' fitting lclose within the surrounding edge of the coverA C. By means of pins or morrow plates, c c, s suspended from the ring E a plateLF, of such diameter that it can just' poss through the hole in the cover C, The surface of thelplate F is concave, nsshoivn.

A blast of airientering the box A, through the pipe B, passes along the Vconvex face' of the cover C towari the space betweenthe plate F and the ,ring E, and enters the fire. The inner-piece E F can be taken out, if:

drawn out in a vertical direction, but not by a poker or tongs tur-ning on affulcrum, or inserted` in an inclined direction. For cleaning purposes, the cover C can be taken olf, and n'o'joints will bebroken bytheprocess..

I claim as new, and desire'to secure-by Letters Patent- A tuyere, consisting of the box A, annular cover C, with a convex under side, an'd of'- theremovable ring- E, from which the concave plate F its suspended, all made and operating substantially as herein `shown and described` i JOHN B. HIMBERY',

Witnesses J. P. DUKEHARJ, GIDEON BAN'rz. 

